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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 17, Iss. 2 — Apr. 1, 2013
  • pp: 182–187

Comparative Experimental Analysis of Thermal Characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate Fibers

Seungjong Lee, Luis A. Vazquez-Zuniga, Dongyoung Lee, Hyuntai Kim, Jayanta K. Sahu, and Yoonchan Jeong  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 17, Issue 2, pp. 182-187 (2013)


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Abstract

We present a comparative experimental analysis of the thermal spectroscopic characteristics of a phosphosilicate (P)-based ytterbium-doped fiber (YDF) against an aluminosilicate (Al)-based YDF in the temperature range of 25 to 150°C. We also characterize the fibers as gain media in a cladding-pumped amplifier configuration. While both fibers exhibit comparable trends in their thermal characteristics, there are noticeable distinctions in the fluorescence lifetime reduction rate and the spectral dependence of the transition cross-sections. The P- and Al-based YDFs present thermal lifetime reduction rates of 0.012%/°C and 0.026%/°C, respectively. In particular, in the spectral region at ~940 nm, the absorption cross-section of the P-based YDF undergoes significantly less thermal change compared to that of the Al-YDF. In the cladding-pumped amplifier configuration operating at a total gain of 10 dB, the Al-based YDF generally performs betters than the P-based YDF in the temperature range of 25 to 75°C. However, it is highlighted that in the high temperature range of over 75°C, the latter shows a less gain reduction rate than the former, thereby yielding higher relative output power by 3.3% for a 1060-nm signal, for example.

© 2013 Optical Society of Korea

OCIS Codes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(140.3510) Lasers and laser optics : Lasers, fiber
(300.6360) Spectroscopy : Spectroscopy, laser
(140.3615) Lasers and laser optics : Lasers, ytterbium

History
Original Manuscript: March 18, 2013
Revised Manuscript: April 1, 2013
Manuscript Accepted: April 5, 2013
Published: April 25, 2013

Citation
Seungjong Lee, Luis A. Vazquez-Zuniga, Dongyoung Lee, Hyuntai Kim, Jayanta K. Sahu, and Yoonchan Jeong, "Comparative Experimental Analysis of Thermal Characteristics of Ytterbium-Doped Phosphosilicate and Aluminosilicate Fibers," J. Opt. Soc. Korea 17, 182-187 (2013)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-17-2-182


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